Paper machine wire stringing device



June 14, 1949D 1.-. HoRNBos-rEl.

I PAPER MACHINE WIRE STRINGING DEVICE `6 Sheets-Sheet 1 Filed June 14,1944 nZEz-z El Loro Hoe/vaosra.

June 14, 1949. L. HORNBOSTEL 2,473,100

PAPER MACHINE WIRE STRINGING DEVICE vFiled June 14, 1944 r 6Sheets-Sheet 2 L o .vo HoeNsos rs1.

June 14, 1949. n... HoRNBosTEL. 2,473,100

` PAPER MACHINE WIRE STRINGING DEVICE Filed .June 14, 1944 5sheets-sheet s L o ya Haes/aos rfv.

June 14, 1949. L, HoRNBosrEL 2,473,100

v PAPER ummm; WIRE STRINGING DEVICE Filed June 14, 1944l Sheets-Sheet'i-June 14, 1949. L. HoRNBosTEL PAPER MACHINE WIRE STRINGING DEVICE FiledJune 14, 1944 6 SheetsSheet 5 Z-ZF'E mI-f' Lora Hoe/vaasr-L.

June 14, 1949. L.. HoRNBosTEL.

PAPER MACHINE WIRE STRINGING DEVICE Filed June 14, 1944 zzz/'E'r-z csr-1Loro Hoeuaosnn,

Patented June 14, 1949 Lloyd Hornbostel, Beloit, Wis.,

assigner to Beloit Iron Works, Beloit, Wis., a corporation of WisconsinApplication June 14, 1944, Serial No. 540,260

The present invention relates to the placing of a forming wire on apaper making machine, and specically deals with the draping of a formingwire in an open loop in the aisle adjacent the wet end of a Fourdrinierpaper machine and the moving of this open loop into the line of themachine around the entire table thereof or around the couch roll onlythereof.

It is one of the principal objects of the present invention to simplifythe construction of a wire Stringing device for a paper making machineand to improve the emciency, operation and dependability of such wireStringing device.

Another principal object of this invention is to provide apparatuswhereby the Stringing of the wire in a paper making machine may beaccomplished entirely from an overhead assembly, suspended from tracks,and adapted to be shifted from the aisle to the line of the machinewhere the Stringing operation is performed. This arrangement perrnitsthe wire bundle to be assembled on the suspension means and made readyfor Stringing in the aisle before shutting down the machine. Also theaisle at the front side ofthe machine will be clear for access to themachine after the wire has been moved into the line of the machine.

A further object of the invention contemplates the provision of a wireStringing device having means that will bodily. support or suspend thefront end of a couch roll to provide a gap thereunder that is utilizedduring the Stringing operation for passing an open bight of the wirebundle therethrough to position the bight in encompassing relation tothe couch roll. The devices for suspending the couch roll are above theroll at a desirable location between the adjacent edge of the wire loopand the front end of the couchy roll, and during the encompassing of thecouchroll the wire loop is adapted to telescope the suspension' devicesand pass beyond said devices to a position where the loop v.encompassesthe couch roll.

yAnother object is to provide a wire Stringing `struempfethat is adaptedto suspend the vtame of a paper machine when its front end supports aredisplaced to open a gap therebetween through which the wire is passed toits encompassing relation around the table.

Still another object is to provide a wire Stringer upon which the wireis assembled in an aisle, whereby the Stringing operation may beperformed upon either of two paper machines having their front sides atopposite Vsides of the aisle.

It is also an object to provide a wire Stringer 23 Claims. (Cl. 592-44)whereon the wire bundle may be completely unwound and opened or extendedin a manner that permits the encompassing of the entire table by thewire when the Stringer has been may be readily performed without removalof the forming table from its normally operating position.

It is another object of the invention to prov machine to a positionwithin the confines ofv the main frame'thereof or in the line of thepaper machine, and after a gap beneath the front couch roll bearing hasbeen closed the roll is disconnected from its suspension means and thelatter is removed from the bundle support.

The invention contemplates providing an overhead crane structure with aremovable frame that will Support the table during transfer of thewirekfroman aisle position to a table encompassing position and is thenadapted to be dismounted from the crane for removal bodily from themachine. This removable frame is provided with means that permit it tohave rolling support upon the'table members after being dismounted.

Another object ofthe invention is to provide a removable beam forsupporting a wire bundle with an end portion of the wire disposed in apendent loop prior to and during the encompassing of the couch roll withthe wire loop. This beam is Suspended in a removable manner that allowsit to be readily removed longitudinally is preferably of the wheeleddolly type that is ridable on flanges of the bundle supporting device,during the movement of the supporting de vice to position the Wire looparound the table, or couch roll, or both. The dolly is adapted to remainin a xed relation to the table or couch roll to suspend it while thewire loop passes through agap beneath the front end of the table orroll.

moved into A the plane of the line of the paper machine. This Anotherobject of this invention residesln providing an overhead crane structureof such dimensions that it extends at least the length of the table andhas provision for unrolling the wire bundle in the aisle and, after agap has been opened beneath the table, the wire may then be transferredfrom its aisle position to a position encompassing the table the fulllength of the latter.

A still further object is to provide a wire stringer that is adapted tosuspend the wire in a large open loop supported upon a traveler or cranefor readily Stringing the wire upon a cantilever type of Fourdriniertable.

The structure herein contemplated will conserve man power; it materiallyreduces the time that has heretofore been consumed in the operation ofStringing the forming wire upon the couch roll and table of a papermaking machine; it eliminates some of the usual steps heretoforerequired; and it dispenses with some of the parts of the prior devices.

Additional objects, aims and advantages of the invention contemplatedherein will be apparent to persons skilled in the art after theconstruction and operation of the wire Stringing or band stringingdevice is understood from the within description.

It is preferred to accomplish the numerous objects of this invention andto practice the same in substantially the manner hereinafter fullydescribed and as particularly pointed out in the appended claims,reference being made to the accompanying drawings that form a parthereof.

Figure l is a vertical elevation of the wire.

stringi-ng device in connection with a couch roll oi a paper makingmachine, the forming wire bundle and looped portion thereof being insuspension above the aisle at the front of the machine;

Figure 2 is a vertical elevation showing the wire 'Stringing devicemoved to a position Where the 4wire loop has encompassed the couch roll;

Figure 3 is a vertical elevation showing the parts in the position shownin Figure 2 except that the gap at the front end of the couch roll hasbeen closed and the supporting beam for'the wire bundle is being removedfrom 'the loop, one end of the beam resting upon the couch roll;

Figure 4 is a diagram looking at the side of the assembly with the wirestringing devices' in the position shown in Figure 2; and

Figure 5 is a diagram of the side of the assembly shown in Figure 3 withthe bundle supporting beam being removed from the loop.

Figure 6 is a diagrammatic view in side elevation illustrating the Wirebeing strung after it has encompassed the couch roll.

Figure 7 is an elevation of a wire Stringer adapted to string the wireupon the forming sec- 'tion of a paper machine having a non-removabletable portion.

Figure 8 is a front side elevation oi the forming table and wirestringer shown in Figure 7.

Figure 9 is a fragmental transverse section of an aisle between papermaking machines having forming tables of the cantilever type andillustrating a wire Stringer suspended in the aisle ready to string thewire upon the table at the left.

Figure 10 is a front side view of the structure shown in Figure 9 afterthe wire has been strung on the table and the table front end supportshave been replaced.

The drawings are to be understood as being more or less of a schematiccharacter for the purpose of disclosing a typical or preferred form ofthe improvements contemplated herein.

In the embodiment of the invention shown in Figures l to 6, the wireStringer is illustrated for draping the wire around a couch roll I0.

The couch roll I0 has its front end bearing II supported by ademountable block I2 that restslon a pedestal or the longitudinalside-sill I3 of the paper machine, the removal of said block beingadapted to open up a gap I4 below the front end bearing of the couchroll that is utilized to pass the wire loop therethrough while Stringingthe wire loop upon the couch roll. The opposite end or rear end of thecouch roll is supported by a bearing I5 mounted on the other side-sillI3a of the machine, and connections are made with the interior of theroll for sucking the moisture or condensation therefrom that is effectedthrough a pipe or conduit I6.

The support for the wire bundle and for the couch roll front endcomprises a horizontal beam I1 that is suspended by bars I8 from a crossrod I9, said bars I8 having hooks 5I at their lower ends that areengaged in holes in the upstanding lugs I'la adjacent the ends of thebeam Il. This cross rod I 9 has suitable connections at its end by meansof links 20 with pulleys 2| around which the lower bights of cables 22are reeved, the upper bights of said cables being reeved around pulleys23 that are rotatably mounted at the ends of a traveling carriage orcrane 24. For the purpose of operating the fall ends of cables 22, theseends are attached to and wound upon a rotatable drum 25 that isjournaled in the central portion of the carriage or crane 24, and amotor 26 is provided driving said drum 25.

The carriage or crane 24 is provided with a plurality of rollers 21 thatare engaged with the bottom flange of a horizontal beam 28 to supportthe crane in an overhead manner. 'Ihis arrangement permits the crane totravel in longi-l tudinal directions on the beam 28 to move the bundlesupporting beam Il in directions that are parallel to the axis of thecouch roll I0.

The ends of the horizontal beam 28 are provided with hangers 29 ofsubstantially U-shape that have rollers 30 journaled in their spacedupper ends. Horizontal tracks 3| of I-beam shape are mounted upon theceiling or other overhead support and the rollers 30 of the hangers 29travel on the lower flanges of these tracks, thus permitting the cranestructure that suspends the bundle support to travel longitudinally withrespect to the line of the paper making machine and in a directiontransverse to the axis of the couch roll I0. Thus the wire bundle may beconveniently assembled on its support with its pendent loop L in theaisle at therfront end of the couch roll in readiness to encompass theroll before the paper machine is shut down and the old forming wireremoved therefrom.

The beam Il is adapted to support the front end of the couch roll in asuspended manner when the block I2 has been removed from beneath thefront end bearing II to effect the gap I4 thereunder. The means forsuspending the front end of the couch roll comprises a dolly 32 havingrollers 33 that ride on the lower ilange of the I-beam I1. The lowerportion of the dolly is provided with a shackle bolt 34 to carry a hook35 that is engageable with an4 eye 36 on the upper segment of the couchroll end bearing II. When the beam I'I and the wire bundle support movesin a. direction axially of and above the couch roll to position thebundle and its open loop in encomanarco passing relation to the couchroll, the dolly 82 will remain in a ilxed or stationary position byriding upon the flange of the beam I1.

The ends of beam I1 are detachably connected by eye-bolts 84 to polechucks 31 from which the apertured lugs Ila project. These chucks 31rotatably carry spindles 31a with clamps 31h on their inner ends toclamp the ends of the two spool poles of the wire bundle. .A looped endportion oi the bundle depends upon opposite sides of the beam I1. Thepole chucks 31 have laterally disposed horizontal arms 38 projectingfrom it adjacent the lugs I1a and the ends of these arms 88 havepocket-like seats 39 to receive the ends oi spreader poles 40. Thesespreader poles 40 are employed to distend the upper portion of the wireloop far enough away from the beam I1 so that the pendent sides of theloop will be in vertical planes far enough apart to escape the iront endbearing II of the couch roll when the wire loop passes through the gapI4 beneath said front bearing of the roll. Other spreader bars or polesdi are positioned in the lower portion of the wire loop and are held inspaced relation to each other by horizontal bars 42 that are providedwith concave seats 43 at their ends to receive said spreader poles 4I.In this manner a. wire loop is formed that has a rectangular shape suchas shown in the diagram in Figure 4, the horizontal dimensions of whichare large enough to accommodate the couch roll I and its front bearingIi when the beam has been moved into the line of the machine and abovethe couch roll by passing the lower distended portion of the loopthrough the gap I4.

After encompassing of the couch roll It! with the loop L of the wire,the block I2 is replaced beneath the front end bearing II of the couchroll to close the gap I4, and the pole-chucks 31 and the beam I1 arelowered to permit the dolly .32 to be unhooked and released from thecouch roll bearing II and then removed from the beam I1 by riding thedolly off the adjacent end of said beam at the aisle. y

With the couch roll now restored to its initial position, the formingwire is ready to be strung upon the remaining portion of the papermaking machine table by moving the crane devices of the yoverheadstructure longitudinally of the line of the machine. Prior to doingthis, however, the beam I1 is dismantled from its suspension de'- vice`sby detaching the eye-bolts 60 to release the beam from the pole chucks31 and then moving the beam forwardly in the loop of the wire to allowthe beam to pass out of the loop in a direction axially of the couchroll I0. For the purpose of facilitating this removal, the beam I 1 hassecured to its rear portion, an inverted V-shaped bracket, the divergingarms 44 of which straddle the beam I1 (Figure 4) and carry obliquelydisposed rollers 45 at their lower ends. These rollers are adapted toride upon the top of the couch 'roll to support the beam until its rearend arrives at the front end of the couch roll where the beam may bereadily lifted out of the way.

The arms 38, which support the spreader poles 40 for the purpose ofsuspending the loop of the wire, are a part of the pole chucks 31thatcarry the bundle of wire and are therefore not removed with the beamI1. The vertical suspension bars I8 and hooks 5I are replaced by rodsI8a having rings Ia at their lower ends to carry diverging links 46which are engaged in holes 41 in the pole arms 38, in the manner shownin Figure 5.

The wire bundle spool poles have their ends clamped in the chuck blockcarried spindles 81a and hand -wheels 48 are provided :or rotating thespindles and the' spools to unwind portions of the wire bundle wound onthe spools. Small brake bands 48 'engage hub portions ot the hand wheelto prevent unauthorized rotation oi the spool poles and the wire bundle.

Preparatory to starting the wire Stringing operation the carrier ispositioned as shown in Fl ure 1 above the aisle with the wire loop Ldistended and opposite the front end of the couch roll. The dolly ismoved along the I-beam until its hook can be engaged with the eye on thefront end bearing of the couch roll, and thereupon the hanger cables areoperated to elevate the carrier until the end oi the roll is supportedsuiciently to permit displacement of the removable block. The carrierassembly together with the pendent opened wire loop is moved in adirection longitudinally of the couch roll until the position shown inFigure 2 is reached, thus encompassing the couch roll with the wireloop. The block is then replaced under the front bearing of the couchroll and the hanger cables are operated to lower the beam Il and restorethe front bearing of the couch roll to its original or normal positionso that the dolly may be unhooked from the bearing. The beam is thenuncoupled from the chuck blocks so that it can be lowered until therollers rest upon the top of the couch roll upon which the end issupported during the withdrawal oi the beam out of the loop. A polebasket 52 (shown in Figure 6) is attached to the bottoms of the chuckblocks 31 with a plurality of poles 53 therein and the spreader bars 4Iwith their 4brackets 4'2 are removed from the looped wire. The stringerdevice may then be moved longitudinally of the machine to string thewire as shown in Figure 6 while temporarily Stringing the upper bight ofthe wire upon poles 53 that have been removed from. the basket 52 andsuspended on hangers 54.

The wire stringers shown in Figures 7 to 10 embody structures forsupporting the wire in an elongated loop that is approximately thelength of the forming table and, after the gap has been opened upbeneath the front end of the table, this elongated wire loop is movedfrom an aisle position to a position in the line of the paper makingmachine to encompass the table. In these structures the front end of theforming table is supported during the Stringing operation in oneinstance by the wire Stringing assembly and in the other instance by acantilever arrangement at the rear end support. In both types the wireis assembled in an elongated loop in the aisle at the front end of theforming table while the machine is in operation, thus eliminating aconsiderable loss of time in shutting down the' machine during the wireStringing operation.

The forming table shown in Figures i and 8 comprises front and rearsills 6I and 62 respectively that extend longitudinally of the machineand support a plurality of table rolls 63 and the suction boxes 64. Thebreast roll 65 at the receiving end of the table is of the displaceabletype that is fulcrumed upon a pivot 66 and has supporting arms 61connecting it to the pivot to adapt the breast roll 65 for swingmovement in a downward direction in the manner shown in dotted lines inFigure 8. The suction couch roll 68 at the other or delivery end of thetable is mounted for rotation in fixed relation to the table sills 6Iand 62, and it has a front end bearing support 89 that is displaced toopen up a gap between the couch roll and its pedestal 10. The

` e. plurality of pedestals 1| that are bodily removable, as shown inFigure '7, to open up a gap beneath the table at its front end. The wirewhen operating upon this table is held taut by a tension roller 12journaled. in bearings at the ends of a cross piece T3 that is connectedby parallel links 14 having their ends pivotally connected to said crosspiece and to brackets l5 depending from the under side of the table.This arrangement i permits the tension roller to be shifted from thefull line position in Figure 8 to the dotted line position thereonduring the Stringing operation.

The wire stringer assembly shown in Figures 7 and 8 comprises elongatedside sills 16 that are spaced apart approximately the width of theforming table and are connected by a pair of converging bars 'l1 to eyes18 at the lower ends of links 'i9 depending from an overhead cranestructure such as shown in detail in Figures 1 and 2. The ends of theside sills T6 have oblique portions 80 and 8|, respectively, thatincline downwardly in opposite directions away from each other towardthe respective ends of the table. Extension that are secured to theinclined ends 80 ofthe side sills 1'6. Extension bars such as 83 aresecured to the oblique ends 8| of the sills and have downwardly curvedlower portions that extend around the ends of couch roll 68 and inspaced relation thereto. Clamps 84, 8l of U-shape are mounted on thebars 82 in the manner shown in Figure 8 to receive the loop-formingpoles 85. Similar U-shaped clamps 86, 86 are secured to the curved bars83 to support other loop-forming poles 8T, 81. The side sills 16, 16 arepreferably of angular cross section, preferably of the channel type andbetween their ilanges these side sills have seats 88, 88 to receivepoles 89, 89 that extend between the respective side sills 16.

The wire bundle has its spool poles clamped to spindles 90 rotatablycarried by the intermediate portions of each of the side sills 16, 16.spindles 90 have hand wheels 9|, 9| to unwind the wire upon the carrierwhile the latter is above the aisle at the front end of the paper makingmachine forming table. The wire as shown in dotted lines in Figure 8 istrained upon the poles 89, 85 and 8l in the form of an open loopsuiciently elongated to encompass the table g and couch roll when thebreast roll is dropped to its foreshortened position. This elongatedloop of the wire is maintained against slipping on the poles and itsbights are kept taut in the position shown in dotted lines in Figure 8by brake members 92 that operate upon the hubs of the hand Wheels 9|.

The means for supporting the front side of the table, to 'establish andmaintain a gap beneath the table and couch roll,.comprises a demountablestructure that is carried by the side sills 16. This demountablestructure comprises spaced I- beams 93, 93 that are secured to the underportions of the lower flanges of the side sills in the manner shown inFigure 8 by means of eye-bolts 94, 94. The ends of these I-beams 98 areconnected to transverse I-beams 95, 95, the lower anges of which providetracks for traveling doilies 96, 96. The upper portions of these doilies96 are of yoke shape for mounting confronting tapered rollers 91, andthe lower ends of these doilies are provided with clevis hooks 98, 98 toengage in eyes 99, 99 on the upper surface of the front end members 6|of the forming table. When the hooks 98 have been engaged in the mannerdescribed` the front end of the table may be lifted bars 82, 82 havecurved upper portions by operating the winding drum 26 on the crane The`structure to thereby lift the front end member 8| of the table for theremoval of the pedestals 7| and the end bearing block 69 for the couchroll, thus providing a gap at the front end of the forming table.

After the loop has been made with the wire above the aisle at the frontend of the forming table and the hooks 98 have been engaged with theeyes 99 on the forming table front member 6|, the paper making machineis stopped and the gap beneath the front end of the table and the couchroll is then opened up and the breast roll is dropped to its loweredposition (dotted lines in Figure 8). The loop assembly is then movedfrom its aisle position as shown in Figure 7 across the table until thewire loop has encompassed the table. The pedestals 1| and the front 99and the doilies 96 are removed from the tracks 95.

The I-beam tracks 95, together with the beams 93, are now removed byloosening and turning down the eye bolts 94 permitting removal of theseparts from the side sills 'i6 of the Stringer. To facilitate removal ofthis portion of the wire Stringer the beams 93 have brackets |00, |00depending from their lower flanges that have rollers |0|, |0| journaledin their lower ends. This arrangement permits the rollers |0| to ride onthe top of the table while the beams 93 and 95 4are being removedthrough the Wire loop.

It will be understood that during the Stringing operation the doilieswill remain in xed relation to the front end of the forming table withtheir rollers 91 riding on the lower anges of the encompassing positionin the line of the paper making machine.

Figures 9 and 10 disclose the manner ofusing a Wire Stringer such ascontemplated herein on a. cantilever type of forming table in aFourdrinier paper making machine. As shown in Figure 9 there is an aisleA between the front sides of longitudinally extending paper makingmachines, designated generally as B and C, and the front ends of theforming tables are supported by removable pedestals such as lla.The'rear portions of the table are supported on pedestals 1lb and extendpast the same a suitable distance where the table portions are engagedby upstanding bars |02 having nuts |03 screwed upon their threaded upperends. By tightening these nuts |03 the forming table will becantilevered upon the rear side pedestals 1lb as fulcrums so that thefront pedestals 1| a may be removed to open a gap under the table. Thewire Stringer is assembled in the aisle A between the front sides of therespective tables andthe overhead crane structure is so arranged thatthe Stringer may be used upon either the table B or the table C,depending on which table the wire is to be strung. In the presentinstance the left-hand table B is ready to be strung with the wire.Other portions of the forming table shown in Figure 10 are identicalwith those shown in Figure 8 and therefore, in the interest ofsimplicity, the corresponding are applied to the parts in Figure 10 thatare common to parts in Figure 8.

by means of doliies and the underframingthat is detachably mounted uponthe side sills of the "Stringer shown in Figure 8.` The wire stringer'shown in Figure 10 is supported by cable links f`11a that are attachedat their upper ends to the "overhead traveling crane structure forpermitting the shifting of the wire stringer across the table toencompass the wire around the table member. 'The endsof the side sills16a. have downwardly 'extending bars 82a. and 83a, and poles 85a. are.-carried on the bars 82a by means of the U-shaped clamp 84a. Similarly,poles 81a are secured to the bars 83a by U-shaped clamp members 86e.Seats 88a are provided upon the facing inner 'portions of the side sills16a to receive the pole 4'89e wire bundle are clamped to the spindles90a for vrotation by the hand wheels Sla that are braked by bands 92a.In this construction and arrange- 'ment the wire is trained upon thepoles 85a, 81a and 89a in the manner shown in dotted lines in 'Figure10, such arrangement being the same as the arrangement shown in Figure8. The assembly of the wire in a loop upon the stringer device is madein the aisle prior to shutting down the machine. After the machine hasstopped the 'iront end of the forming table is cantilevered upwardly toremove the pedestals 1| and couch roll bearing support 69 at its frontends to open the Egap and permit passageof the lower run of the loop ofwire through said gap forencompassing the forming table.

" From the above descriptions it will be understood thatthe inventionprovides apparatus for rapidly placing a forming wire on a Fourdrinlermachine without damaging the wire since the wire is not dragged over anysupports even though the paper machine does not have a laterally movabletable.

I claim as my invention: 1. In combination, a paper making machine ofthe Fourdrlnier type having a couch roll with a removable front bearingsupport for opening up -a gap facilitating passage or a forming wire, amovable wire bundle carrier, .means suspending said carrier above thecouch roll for movement longitudinally and laterally of the machine,

'spreader poles on said carrier for holding -a portion of a forming wirefrom a bundle on the car- 'rier in an open depending looplarge enough tofreely encompass the couch roll, a mobile device movable longitudinallyon said carrier in said loop for suspending the front of the couch roll'to maintain the aforesaid gap, and said suspending means arranged tomove the carrier for conrveying the open wire loop thereon from aposition laterally of the machine into the line of the machine toencompass the couch roll while 'said mobile device moves on the carrierwithin the loop.

' 2. In combination a paper making machine of 'the Fourdrinier typehaving a couch roll with a removable front bearing support for openingup 'a gap accommodating passage of a forming wire, an overhead cranemovable longitudinally and laterally of the machine, a wire bundlecarrier :suspended from said crane, spreader poles on said carrier forholding a portion of a forming wire from a bundle on the carrier in anopen depending loop large enough to freely encompass the couch roll, adolly movable longitudinally on said carrier in said loop for suspendingthe front of the couch roll to maintain said gap, and said cranearranged to move the carrier laterally for conveying an open wire loopthereon between the sills, and the spool poles of the into the line ofthe machine'to encompass the 4couch roll while said dolly rides on thecarrier within the loop.

3. In combination, a paper making machine of the Fourdrinier type havinga. couch roll with p a removable front bearing support for opening up agapaccommodating passage of a forming wire, an overhead crane movableaxially of the couch roll, tracks guiding said crane for movementlongitudinally of the machine, a wire bundle carrier suspended from saidcrane, spreader poles on said carrier for holding a portion of a formingwire from a bundle on thecarrier in an open depending loop large enoughto freely encompass the couch roll, a dolly movable longitudinally onsaid carrier in said loop for suspending the front of the couch roll-tomaintain said gap, and-said crane arranged to move the carrier forconveying an open wire loop thereon laterally into the line of themachine to encompass the couch roll while said dolly rides on thecarrier within the loop.

4. In combination, a paper making machine of theFourdrinier type havinga couch roll with a removable front bearing support for opening up a gapaccommodating passage of a forming wire, an overhead crane movableaxially of the couch roll, elongatedsupports for guiding said cranefor-movement lateral'to the axis of the couch roll, a beam forsupporting a wire bundle, pendent means connecting said beam to saidcrane for movement therewith, means on said beam for holding a portionof a forming wire from a bundle on the carrier in an open depending looplarge enough to freely encompass the couch roll. and a mobile devicemovable longitudinally on said beam in said wire loop for suspending thefront of the couch roll to maintain said gap, said crane arranged tomove said beam for transferring the open wire loop thereon from aposition adjacent the front of. the machine to a position in the lineVof the paper machine to encompass the couch roll while said mobiledevice moves on said beam with in the loop.

5. A wire Stringer for a Fourdrinier paper making machine having a couchroll with a front bearing support that is movable for effecting a gapfor passage of a forming wire therethrough, carrier devices adapted formovement in a plurality of directions above the paper making machine andan aisle along the front side thereof, said carrier devices comprising ahorizontal beam assembly connected to overhead traveler means, seats onsaid beam for supporting a wire bundle, spreader poles for holding aportion of a fc-rming wire bundle in a depending loop in front of thecouch roll, a dolly for suspending the iront of the couch roll tomaintain the aforesaid'gap, said beam and dolly adapted for relativemovement the one with respect to the other whereby 'the loop of the wirebundle is passed through said gap and is encompassed around the couchroll, and said beam and poles constituting a unitary structure that isremovable through the wire loop in a direction longitudinally of theaxis of the couch roll.

6. A wire stringer for a Fourdrinier paper making machine having a couchroll with a removable front bearing support for effecting a gap forpassage of a forming wire therethrough, comprising overhead travelerdevices adapted for longitud-inal and transverse movement with respectto the line of the Fourdrinier table, vertically. adjustable hangersvdepending from said traveler devices, a carrier assembly above theplane of the A l1 paper machine to move with said traveler devices. saidassembly comprising a horizontal beam detachably connected to saidhangers for supporting the formingwire bundle, spreader poles carried bysaid beam for supporting a portion of a wire bundle in a distended loopthat is adapted to encompass the couch roll, anda dolly on said beameffective for supporting the couch roll to maintain the aforesaid gap,said beam and dolly adapted for relative movement theone with respect tothe other to pass the Wire loop through said gap and encompass the couchroll therewith.

7. A wire stringer for a Fourdrinier paper making machine having a couchroll with a removable front bearing support for effecting a gap forpassage of a forming wire therethrough, comprising overhead travelerdevices adapted for longitudinal and transverse movement with respect tothe line of the Fourdrinier table; vertically adjustable hangersdepending from said traveler devices, a carrier assembly above the planeof the paper machine to move with said traveler devices, said assemblycomprising a horizontal beam detachably connected to said hangers forsupporting the -i'orming wire bundle, spreader poles carried by saidbeam for supporting a portion of a wire bundle in a distended loop thatis adapted to encompass the couch roll, a dolly on said beam effectivefor supporting the couch roll to maintain the aforesaid gap, said beamand dolly adapted for relative movement the one with respect to theother to pass the wire loop through said gap and encompass the couchroll therewith, and said beam adapted for ready removal longitudinallythrough the wire loop, and rollers on said beam adapted to travel onsaid couch roll to support an end portion of said beam during removal.

8. A paper machine Wire Stringer comprising a beam, a support for a wirebundle on said beam, means associated with said support for holding anend portion of a Wire from a bundle on said support in a depending loophaving dimensions adapting the loop to encompass a couch roll, a couchroll supporting dolly movable lengthwise on said beam, and suspensionmeans supporting said beam for longitudinal movement in a directionparallel with the axis of the couch roll whereby to bodily move the loopof the wire bundle from a position laterally of the machine into aposition in the line of the paper machine to encompass the couch roll,said couch roll supporting dolly being adapted to remain in xed relationto the end the couch roll during movement of the beam into of the couchroll during movement of the beam into the line of the paper machine tosuspend the end of the couch roll free of its normal support to maintaina gap thereat for passage of the loop of the wire bundle to itsroll-encompassing position.

9. A paper machine wire stringer comprising overhead travelerdevicesgadapted for longitudinal and transverse movement with respect tothe line of the Fourdrinier table, vertically adjustable han-gersdepending from said traveler devices, and a carrier assembly above theplane of the paper machine to move with said traveler devices, saidassembly comprising a horizontal beam detachable from said hangers, a,support for a Wire bundle on said beam, means associated with saidsupport for holding an end portion of a wire from a bundle on saidsupport in a depending loop having dimensions adapting the loop toencompass a couch roll, a couch roll supporting dolly movable lengthwiseon said beam, the overhead traveler devices supporting said beam forlongitudinal movement in a direction parallel with the line of the papermachine to suspend the end of the couch roll free of its normal supportto maintain a gap thereat for passage of the loop of the wire bundle toits roll-encompassing position.

10. A wire Stringing device for a paper making machine having a couchroll with a front bearing support that is removable to form a gapbeneath the bearing, comprising a horizontal beam for supporting a wirebundle with an end portion formed in a pendent loop that is suspended inan aisle at the front of the machine; a traveler crane movable in aplurality of directions with respect to the line of the paper makingmachine, said crane connected to said beam whereby a movement of thecrane in a direction transverse to the line of the machine is effectiveto transfer of the wire bundle and the loop thereof from a position inthe aisle to a position in the line of the paper making machine; and adolly on said beam for suspending the front end of the couch roll tomaintain the aforesaid gap beneath the front bearing of the couch roll,said dolly and beam adapted for relative movement one with respect tothe other whereby the dolly is held in a fixed suspending position withrespect to the couch roll during the aforesaid transfer of the wirebundle and the loop.

11. A wire Stringing device for a paper making machine having a couchroll with a front bearing support that is removable to form a gapbeneath the bearing, comprising a horizontal beam for supporting a wirebundle with an end portion formed in a pendent loop that is suspended inan aisle at the front of the machine; a traveler crane supported abovethe paper machine for movement longitudinally thereof, said craneconnected to said beam and having movement in a of the couch roll toeilect the transfer of the wire bundle and the loop thereof from theposition in the aisle to a position in the line of the paper makingmachine; and a dolly on said beam for suspending the front end of therespect to the other whereby the dolly is held in a fixed suspendingposition with respect to the couch roll during said transfer of the wirebundle the aforesaid gap movable above and the loop.

12. A wire Stringing device for a paper making machine having a couchroll with a front bearing support that is removable to form a gapbeneath aisle at the front of the machine; a traveler crane roll wherebyto bodily move 13 l the couch roll, said dolly and beam adapted for'relative movement one with respect to the other 'whereby the dolly lsheld in e fixed suspending position with respect to the couch rollduring said transfer of the wire bundle and the loop.l

13. A device for encompassing a roll with a looped band, comprising aband support; means on said support -for holding a portion of the bandin an open depending loop; a movable suspension 'device for said supportadapted to move in a direction to carry the open loop on the supportfrom a position beyond an end of a roll to a position encompassing theroll; and a dolly movable on said support for suspending an end of theroll to maintain a gap thereunder to facilitate passage of the loopduring movement of the support in a direction longitudinally of theroll.

14. A device for encompassing a roll with a looped band, `comprising asuspended horizontal beam supporting the band; means on said beam forholding a portion of the band in anopen depending loop; a traveler cranesupporting said beam, said crane adapted 'to move in a direction tocarry the open loop on the beam from a position beyond an end of a rollto a position encompassing the roll; and a dolly movable on said beamfor suspending an end of the roll to maintain a gap thereunder toaccommodate passage of the loop during movement of the beam in adirection longitudinally of the roll.

1'5. A device for encompassing a roll with a looped band, comprising aband support; means on said support for holding an end portion of theband in an open depending loop; an overhead traveler crane suspendingsaid band support for movement in a direction axially of the roll tocarry the open loop from a position beyond an end of a roll to aposition encompassing the roll,

said traveler crane also having movement transverse to the axis of theroll to string the remain- .ing portion of the band away from the roll;and

. a dolly movable on said band support for suspending an end of the rollto maintain a gap thereunder` to accommodate passage of the band loopduring movement of the support in a direction longitudinally of theroll.

16. A wire stringing apparatus forv a Fourdrinier paper making machinehaving a couch roll with a removable front bearing support, saidapparatus comprising overhead traveler devices adapted for movement inlongitudinal and transverse direction with respect to the couch roll:vertically adjustable hangers depending from said traveler devices; anda carrier assembly suspended by said hangers from said travelerdevicesfor movement therewith above the paper making machine, saidcarrier assembly comprising a horizontal elongated beam detachablyconnected to said hangers; seats on said beam for supportinga wirebundle with a portion of the wire formed in a pendant loop opposite theiront of the couch roll; spreader poles on said beam for dlstending thewire loop into dimensions large enough to encompass said couch roll; adolly adapted to traverse said beam and being demountable therefrom; andmeans detachably connecting said dolly to the front of the couch roll toeiect a xed relationship between the dolly and the couch roll whereby tosuspend the couch roll front end from said beam between vertical planesdefining the couch roll front side and the proximate edge of the wireloop thereby to open and maintain the gap beneath said front of thecouch roll, said beam dolly for effecting transfer of the wire bundleinto anarco the line of the paper making machine by passing the loopof'the wire through the gap to encompass the couch roll with the wireloop; said beam, seats, and spreader poles being adapted for removallongitudinally through the wire loop.

17. In combination, a paper making machineI of the Fourdrinier typehaving a forming table with a removable front support for opening up a,gap facilitating passage of a forming wire; a shiftable wire carrier;means on said carrier for holding the wire in a depending open loop atthe front of said table; a device movable on said carrier in the wireloop for suspending the front of said table to maintain the aforesaidgap; and overhead traveler means suspending said carrier for movement toconvey the wire loop from beyond the front end of. said table intoencompassing relation therewith while said-front end suspending devicemoves on said carrier within the wire loop.

18. In combination, a paper making machine of the Fourdrinier typehaving a roll part with a removable frontsupport for opening up a gapfacilitating passage of a forming Wire; a shiftable wire bundle carrier;means suspending said carrier in a plane above thel plane of said rollpart for shifting movement across said roll part, spreader poles on saidcarrier for holding a portion of a forming wire from a bundle on saidcarrier in an open depending loop large enoughl to freely encompass saidroll part; and a device movable longitudinally of said carrier in saidloop for suspending the front of said roll part to maintain theaforesaid gap, said suspending means arranged to move said carrier forconveying the open wire loop thereon from beyond the front end of saidroll part into line therewith to encompass said roll part while saidmovable device moves on said carrier within the wire loop.

19. A paper -machine wire Stringer comprising tion beyond the front ofthe forming table into.

a position in the line'of the paper machine to encompass the formingtable, said table supporting dollies being adapted to remain in fixedrelation to the front of the forming table during movement of the sidemembers and beams into the line of the machine to suspend the front ofthe table free of its normal support to maintain a gap for passage ofthe wire to its table-encompassing position.

20. In combination, a paper making machine of the Fourdrlnier typehaving a forming table with a, removable front support for opening up agap facilitating passage of a forming Wire; a shiftable wire carrier;means on said carrier for holding the wire in an elongated dependingopen. loop at the front end of said table and approximately the lengththereof; tracks removably mounted on said carrier -transverse to thewire loop; devices mov-able on said tracks within the wire loop forsuspending the front of said table to maintain the afores-aidgap;overhead vtraveler means suspending said carrier and tracks for movementto convey the wire loop from beyond the iront of said table intoencompassing rela- 15 tion therewith while said front end suspendingdevice moves on said tracks within the Wire loop; and rollers pendantlycarried by said tracks adapted to travel on said forming table tosupport a portion of said tracks during endwise removal of said tracksthrough the wire loop.

21. In combination, a paper making machine of the Fourdrinier typehaving a forming table with a removable front support for opening up agap facilitating passage of a forming wire; a shiftable wire bundlecarrier; means suspending said carrier in a plane above the plane ofsaid table for shifting movement across said table; spreader poles onsaid carrier for holding a portion of a forming wire from a bundle onsaid carrier in an open depending loop large enough to freely encompasssaid table; removable transverse beams on' saidcarrier Within the wireloop; devices movable longitudinally on said beams in said loop forsuspending the front of said tableV to maintain the aforesaid gap, saidsuspending means arranged to move said carrier for conveying the openwire loop thereon from beyond the front of said tablein-to linetherewith to encompass said table while said movable devices move onsaid beams within the wire loop; and rollers on said beams adapted totravel on said table to support portions of said beams during removal ofthe beams through said wire loop.

22. In combination, a Fourdrinier paper making machine having a. formingtable with a removable front support for opening up a gap facilitatingpassage of a forming Wire, a, wire stringer comprising longitudinal sidemembers; means supported by said side members for holding the wire in adepending loop having dimensions adapting said loop to encompass theforming table; spaced transverse beams detachably carried by said sidemembers; dollies movable lengthwise on said beams having supportingconnection with the front end of said forming table;

overhead suspension means for supporting said side members for movementacross said forming into a position in the line move the wire loop froma posifront end of the forming table of the paper machine table, saiddollies beiixed supporting relation to the front end of the formingtable during movement of the side members into the line of the machineto maintain the aforesaid gap for passage of the wire to itstable-encompassing position; and rollers having fixed connection withsaid transverse beams adapted upon detachment of said beams from saidside members to support said beams out of contact with said formingtable, said rollers also adapted to roll on said forming table tofacilitate endwise removal of said beams through said wire loop.

table whereby to tion beyond the 23. A wire Stringer for a paper makingmav chine comprising a support for the spool poles of a wire bundle,devices carried by said support for holding wire of the bundle in anopen loop, a

. detachable track on said support arranged to extend through said loop,and a paper machine roll suspension device rideable on said trackwhereby a wire loop around a machine roll while the suspension devicesuspends the receiving portion of the roll and rides throuh the loop andwhereby the track and suspension device are removable from the supportfor mounting the wire on the roll.

LLOYD HORNBOSTEL.

REFERENCES CITED The following references are of record in the file ofthis patent:

UN STATES PATENT

